Just discovered this project a few days ago and got a few questions.

Personally I am using a Voodoo 3 3500 AGP as primary video card. From what I read AGP will not work, and Voodoo 3 will not work either (though I guess not this special VGA 3500 was tested, but I doubt it makes a difference).
However I got a "backup" PCI Card, which happens to be the compatible: The Trio64V2/DX. And I would only need to use this CRT Terminator card for 320x200 games anyways, to get rid of the grain, which is only present in doublescan apparently and can't get removed by the retrotink4k. So I could make this a dedicated card for that using the Terminator.

But as I do have a Retrotink4k for scaling anyways, the whole scaling feature would not be required. Therefore I am wondering if there are any plans for a "light" version without the whole processing logic.
I don't know ofc how much of the processing (and production) cost is used for that and if it would make an actual difference.

The ISA part is I guess required to correctly interprete the Data from the feature connector (via the snoop). Is there any way you could get the data by other means? I was wondering with such an expensive device (300€+ if everything is included) could be made external so it could be used for multiple PCs. But if you require an ISA connection, that would be kinda hard (possibly with a long ISA Extention cable, but don't know if thats viable).